Other

Z.ai: GLM 5.3 Prime

z-ai/glm-5.3-prime

canonical: z-ai/glm-5.3-prime-20260921

Descriptionfrom OpenRouter

GLM-5.3-Prime is the high-speed variant of Z.ai's GLM-5.3, inheriting its full capabilities while delivering 1.5–2× the output throughput through inference acceleration. It supports text input and output with a 1M-token...

Context length

1,000,000 tok

Max completion

131,072 tok

Knowledge cutoff

—

Expires

—

Added to OpenRouter

9/23/2026

Cache last refreshed

11/12/2026

Primary modality

text->text

Source

OpenRouter

Input modalities

text

Output modalities

text

Pricing

Field	Per token (USD)	Per million
prompt	0.0000028	$2.80
completion	0.0000088	$8.80
input_cache_read	0.00000056	$0.560

Supported parameters(16)

frequency_penaltyinclude_reasoninglogprobsmax_tokenspresence_penaltyreasoningreasoning_effortresponse_formatseedstoptemperaturetool_choicetoolstop_ktop_logprobstop_p

Default parameters

{
  "temperature": 1,
  "top_p": 0.95
}

OpenRouter page

Rounds

3 answersin this database. A round opens every model's answer to the same prompt.

Oct 18, 2026Model FingerprintsPick Ten Random Thingsin a video round answer
Oct 18, 2026Model FingerprintsName Ten Story Charactersin a video round answer
Oct 18, 2026Model FingerprintsTen Canvas Animation Ideasin a video round answer